<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <script type="text/javascript">
        //编写一个JavaScript对象
        var user = {
            name : "张三",
            age : 3,
            sex : "男"
        };

        console.log(user);
        //将js对象转换为json对象
        const json = JSON.stringify(user);
        console.log(json)

        //将json对象转换为js对象
        const obj = JSON.parse(json);
        console.log(obj)


    </script>
</head>
<body>

</body>
</html>